Sash operating device



* p 1933. E. L. ACKERMAN 1,92

SASH OPERATING DEVICE Filed June 29, 1929 JNVENTOR. [ah 1900 flare/911M A TTORNE Y.

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Patented Sept. 19, 1933 1,927,790 fl 1 I 1,927,790 7 sAsHOPERA'rING DEVICE EdwardL. Ask-airman, Detroit, Mich., assignor Y Ackerman-Blaesser-Fezzey, Inc., Detroit, -Mich.,

,7 a corporation of Michigan I Application' June .293929. v Serial fl Claim-U((51:268126) p W v a toothed portion 11 for cha ging the te ethl s p! This invention relates to sash operating devices,

the object being to provide a simple and in'exeither increaseor' decreasethe tension of the pensivevdevice for the sliding of a sash in its frame and may be used w ith various types of windows and is particularly adapted for use with windows of a closed automobile body.

The purpose of the invention is to provide a structure that, is adapted for use with diiferent weights of sash andmay be: adjusted either to counterbalance the same .or'to such condition that the regulator will automatically 'rais'e the sash in its frame.

,A' further feature of the invention residesin the provisionof parts wherebyfapplicationiof pressure to the sash in the raising or lowering operation is maintained substantially centrally, betweenthe siderailsthereof inany'of the adjustted positions of the sash inits frame.

These and other objects andnovel features oi the invention are "hereinafter more fully described and claimed," and'the' preferred form of a sash operatingmechanism embodying my invention is shown in in'which- Fig. 1 is an elevation of my improved sash operating mechanism.

Fig. 2 is an edge view thereof taken from the left side of Fig. 1.

Fig. 3 is a perspective of a device utilizable in adjusting'the spring tension. v

No attempt is here made'to illustrate the sash or the frame in which it is slidable such structures with which the device is adapted for use being commonly well known and illustrated in my. ap-

plication for patent for Window regulator, Serial No. 362,556, filed May 13, 1929.

In its preferred form the device consists of a plate 1 adapted to be mounted upon a cross member of the window recess and revolvably supported in this plate is a shaft 2 extending to opposite sides of the plate. The end shown in Fig. 1 is provided with a slot to'receive the inner end of a spiral coiled spring 3, the outer end of which is secured in the slotted end of a pin 4 secured to the adjusting element 5. Thiselement 5 is provided with a toothed periphery 6 and adjacent the periphery is a series of apertures 7 circularly arranged. A screw 8 is provided and insertible through one of the apertures '1 into a'threaded aperture in the plate 1 to hold the member 5 in its adjusted position. The plateis provided with an aperture 9 directly beneath the threaded aperture for the screw 8 to receive an adjusting tool shown in Fig. 3 which is provided with an end portion 10 for introduction into the aperture and the accompanying drawing spring, the adjusting memberjshown in Fig. fi has its end portion 10 inserted'in the aperture. 9 with theteeth 11 meshing with the teeth ofth'e'm'emberfi. The screw is then removed and the adjustingrhember turned in oneidir'ection or the'other as the case may be to'secure the desired tension of the spring 3 and thescrew. 3 then reinsertedjo hold the member 5 in its adjustedp'osition.

on the opposite end of the shaft 2 issecured 1 a plate 12 having a toothed periphery '13 adapted to engage a gear of the control elementillustrated generally at 1; This control element may beof a type indicated in detail in my saidpending ap- Jplic'ation Serial No. 362,556, orf'ifiU'. SiLetters Patent to myselfand A. J. Zwierzina, No. 1,657,561

issued January 31, 1928. The control element e illustrated in e the said pending application" Serial s "No. 362,556 isiof the type to be utilized with this structure when the spring 'elementis-intended "to be; usedv under a tension'sufficient oi itself 'toraise the sash in its frame whilethecontrol element shownin the Said. U; S.' Pa tcnt Nd. 1,657,561 Y j is' used when'the tension 'o'f thespring'isintended to practically counterbalance the weight of the j sash and through operation of which the sash may bemanually raised orlowered and itis not material to the levers, gear segment and springs, if

the tension of the springs may be made. to practically counterbalance the sash when the device is used with a control element as shown'in the said U. S. Patent No. 1,657,651 and in the control n} shown in the application Serial No. 362,556 the spring 3 is adjusted in tension sufficient to actually move the sash to closed position when .permitted through association therewith of a con trol device adapted. for suchpurposep This arrangement of the structure is well viding'the extension 15 and slot 16 therein through which theshaft 1'7 extends and with the companion ends of the levers 18 and 19 connectedwith the shaft 17 on oppositesides of the extension, an'arrangement is secured preventing lateral movement of these lever ends. By this the parts I means the opposite end of the regulator arm is "support the sash. c I 7 These levers "18 and 1S lie on opposite sides of the extensionf of the plate land in closev association therewith and lateral movement is practically prevented. The tension of the spring 13 1 is also applied to support the sash by imeans of also prevented from lateral displacement or strain tending, to produce lateral displacement relative to the sash and thus prevents a cramping of the parts.

The device is operable by means of a crank attached to the control' element 14' through rotation of which theplat'e 12 is turned on the axis of the shaft 2 and depending upon the direction in which the plate 12 is'turned, the sash engaging arm 19 will be raised or lowered. v In order that the sash engaging roller at the free end of the arm 19 may be maintained approximately on a center line between theopposite sides of a sash, the lever 19 is pivotally supported to the ex- 7 tension 15 of the plate lit being adapted to ride in the arcuate slot 16 formed in the said extensash engaging end 20 of the arm 1.9, and consequently of the sashiconnected therewith, .the shaft 17 will occupy, the end 22 of the slot 16 while in the uppermostposition of the said parts 7 the shaft 17 will'occupy the end 23 of the, slot.

The shaft 1'7 is. also pivoted in the upper end of thelever l8'which isifulcrumed in the fixed plate 90. The spring 2 1 has its inner end fixed to the shaft {17 and its outer end secured to a pin 25 fixed to the lever 18 and, asthe lever 18' is pivoted on the shaft 17,.the tension of the'spring,

24 is applied through thele'ver 19 to, in part,

the ,gear; segment 12 which is pivotally attached to the regulator arm 19. It will alsobe seen. that while thepivot point of the plate 12 on thearm 19 must movethrough a circular path by turningithe element 12, the sash'engaging end 20, of the arm is maintained approximately on the vertical center line ,of the. sash at any ofits pos-' sible points of movement through operation of I end' ofthe arm 19 being capable of movement relative to the extension plate 15. By use of the spring 3' and means for adjusting its tension the weight of? the sash may be counter-balanced and, if' desired, the tension maybe increased to a point sufficient to automatically raise the sash inits frame.

From the foregoing description it is evident ,that the device is simple and comparatively inthe regulator by reason of the pivotally supported expensive in construction and that the various plate at a right angle tothe plane thereot-the horizontal portion of the plate extending at a right angle to the'axis of the shaft, a gear segment supported on one end of the shaft, aspiral ly coiled spring on the opposite end thereof tending to rotate the shaft in one direction, means for adjusting the tension'of the spring, a levera'ge means with which the gear segment is com nected comprising a regulator arm one. end of" which is in operative eng'agementwith a sash, a lever having one end in pivotal relation with the oppositeend of the regulator arm by means of a shaft extending between the aforesaid ends of theregulator arm andthe lever, the said ends of the arm and lever being on opposite sides of the V horizontal'portion of the plate, said portion of the plate having an arcuate slot for the said shaft between the regulator'arm and the lever, the

tending to operate the regulator arm and lever, and a control device through operation of which the position of thegear segment about its axis may be determined to thereby relatively position the regulator arm and sash engaged thereby.

Y 7 'L; ACKERMAN. 

